nir: add has_umul_16x16 option

Signed-off-by: Job Noorman <jnoorman@igalia.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37869>

src/compiler/nir/nir_shader_compiler_options.h

@@ -565,6 +565,9 @@ typedef struct nir_shader_compiler_options {
     */
    bool has_mul24_relaxed;
 
+   /** Backend supports umul_16x16. */
+   bool has_umul_16x16;
+
    /** Backend supports 32-bit imad */
    bool has_imad32;
 

src/freedreno/ir3/ir3_compiler.c

@@ -105,6 +105,7 @@ static const nir_shader_compiler_options ir3_base_options = {
    .lower_pack_64_4x16 = true,
    .lower_to_scalar = true,
    .has_imul24 = true,
+   .has_umul_16x16 = true,
    .has_icsel_eqz32 = true,
    .has_icsel_eqz16 = true,
    .has_fsub = true,